The MOD-IO2 is similar to the MOD-IO but is smaller, with only two relays, does not have opto-isolation, requires a stricter power input, and uses a PIC microcontroller instead of an AVR.

This is a stackable (or rather, chainable) development board which adds relays and GPIOs to any development board that has a UEXT interface. It makes for an easy way to add two relays and seven GPIOs to your system. It has both a male and a female UEXT connector, allowing multiple MOD-IO2 boards to be chained together so you can add as many inputs and outputs as you want. MOD-IO2 has a PIC16F1503 microcontroller, and the firmware is available for modification.

UEXT Connector

The UEXT connector provides a solderless way to connect this module to a system with a microcontroller. There are dozens of microcontroller systems and development boards that can connect to this module via UEXT using the supplied cable. Click on the architectures below for lists of compatible boards: